Home / 142,951.75-197,144.26-89,241.73

Finding the Fourth Proportional to 142,951.75, 197,144.26 and 89,241.73

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Solution

The fourth proportional to 142,951.75, 197,144.26 and 89,241.73 is: 123,072.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,951.75 : 197,144.26 = 89,241.73 : x
  2. Step 2: Convert to fraction form
    142,951.75/197,144.26 = 89,241.73/x
  3. Step 3: Cross multiply
    142,951.75x = 197,144.26 × 89,241.73
  4. Step 4: Simplify right side
    142,951.75x = 17,593,494,821.97
  5. Step 5: Solve for x
    x = 17,593,494,821.97/142,951.75
  6. Step 6: Final answer
    x = 123,072.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.